UNIVERSITAT BASEL UNIVERSITY OF BASEL

INSTITUT FUR HYGIENE UND BAKTERIOLOGIE INSTITUTE FOR HYGIENE AND BACTERIOLOGY

BASEL (SWITZERLAND) = March 29 , 1954
PETERSPLATZ 10

Dr. Joshua Lederberg
Professor

University of Wisconsin
Department of Genetics
Madison, 6

Dear Doctor Lederberg,

I appreciate very much the receipt of
three reprints on your most interesting genetic studies on

Salmonella and Escherichia.

I found with these reprints a typewritten
copy on your simple method for isolating individual microbes
and underneath a question. My answer would be positively: yes.
I-do think that any simple modification of the single cell
technique is important in order to help the extension of this
essential method. We shall be glad to try out ourselves your
technique. | | . .

With best greetings

Yours very sincerely

for

Jd. Tomesik